U-lock barrel



FIG. 1 is a perspective view of a u-lock barrel according to an embodiment of the present invention;

FIG. 2 is a front elevation view of the u-lock barrel shown in FIG. 1, the rear view being a mirror image thereof;

FIG. 3 is a left side view of the u-lock barrel shown in FIG. 1, the right side view being identical thereto;

FIG. 4 is a top plan view of the u-lock barrel shown in FIG. 1; and,

FIG. 5 is a bottom plan view of the u-lock barrel shown in FIG. 1.

In the drawings, broken lines indicate environmental structure or boundaries that form no part of the claimed design. 

The ornamental design for a u-lock barrel, as shown and described. 